Question

Black body at a temperature of `1640K` has the wavelength corresponding to maximum emission equal to `1.75mu m` Assuming the moon to be a perfectly black body the temperature of the moon if the wavelength corresponding to maximum emission is `14.35mum` is .
A. `100K`
B. `150K`
C. `200K`
D. `250K`

Answer 1

Correct Answer - C
`lambda_(m)T = constant rArr lambda_(1) T_(1) =lambda_(2)T_(2)`